EXCERPT page containing first few paragraphs. 2019-02-23 14:19:16
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This aperture series demonstrates the very high image quality available at f/2 that comes with accurate focus.
Depth of field does limit sharpness at f/2, but as a whole total sharpness is very acceptable here on this subject whose main element falls reasonably closely to a planar arrangement, though may portions project forward or rearward. Like any portrait, what really matters is getting one key area very sharp.
ISO 100 at 2, 3.2, 6, 15, 30 seconds for f 2, 2.8, 4, 5.6, 11 with a 1.2 stop push for f/11 (light was fading rapidly).
Examination of the ARW raw file using RawDigger shows of underexposure by a full stop or more—typical for the metering in virtually all cameras (and a waste of sensor capability). Still, there is no issue whatsoever with noise.
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Diglloyd Guide to Mirrorless offers comprehensive integrated coverage of most APS-C and full frame mirrorless cameras and lenses.
Special emphasis is placed on Sony full-frame, including Sony lenses and the high performance Zeiss Batis and Zeiss Loxia lenses plus Rokinon/Samyang and others. Fujifilm X, Olympus and Panasonic M4/3, Sigma dp Merrill and dp/sd Quattro are also covered in depth. Years in the making, it offers a wealth of material for choosing and using a mirrorless camera.
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- Aperture series from wide open through stopped down, showing the full range of lens performance and bokeh.
- Optical quality analysis of field curvature, focus shift, sharpness, flare, distortion, and performance in the field.
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